67200404981 has 2 divisors, whose sum is σ = 67200404982. Its totient is φ = 67200404980.

The previous prime is 67200404941. The next prime is 67200405007. The reversal of 67200404981 is 18940400276.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52177980625 + 15022424356 = 228425^2 + 122566^2 .

It is a cyclic number.

It is not a de Polignac number, because 67200404981 - 2²⁶ = 67133296117 is a prime.

It is a super-2 number, since 2×67200404981² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67200404941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33600202490 + 33600202491.

It is an arithmetic number, because the mean of its divisors is an integer number (33600202491).

Almost surely, 2^67200404981 is an apocalyptic number.

It is an amenable number.

67200404981 is a deficient number, since it is larger than the sum of its proper divisors (1).

67200404981 is an equidigital number, since it uses as much as digits as its factorization.

67200404981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96768, while the sum is 41.

The spelling of 67200404981 in words is "sixty-seven billion, two hundred million, four hundred four thousand, nine hundred eighty-one".